{"id":52766,"date":"2026-06-09T11:49:42","date_gmt":"2026-06-09T10:49:42","guid":{"rendered":"https:\/\/www.gt-engineering.it\/approfondimenti\/%tipologia_approfondimento%\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/il-periodo-del-desk-drawer-standard\/"},"modified":"2026-06-15T07:53:22","modified_gmt":"2026-06-15T06:53:22","slug":"l-ere-des-normes-de-tiroir","status":"publish","type":"approfondimento","link":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/","title":{"rendered":"L&rsquo;\u00e8re des \u00ab normes de tiroir \u00bb"},"content":{"rendered":"\n\n    \n        \n    \n\n\n\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-base\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start flex-col md:items-center\">\n\n    \n                    <div class=\"mb-6 relative w-full md:mb-4 lg:mb-8 xl:mb-9\">\n                \n        <div                class=\"m-headings\"\n            >\n    \n    \n<h2 class=\"a-heading text-primary font-heading text-2xl lg:text-3xl xl:text-4xl font-normal mt-2 first:mt-0\">\n                    Exigences techniques manuscrites    <\/h2>\n        <\/div>\n                <\/div>\n        \n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>Les premi\u00e8res exigences utilis\u00e9es pour \u00e9valuer les panneaux de commande industriels \u00e9taient \u00e9tonnamment informelles selon les normes actuelles. D\u2019apr\u00e8s les t\u00e9moignages historiques de personnes famili\u00e8res avec le d\u00e9veloppement du programme, les premi\u00e8res exigences consistaient en grande partie en des notes manuscrites r\u00e9dig\u00e9es par un ing\u00e9nieur \u00e9lectricien d\u2019UL.<\/p>\n<p>Plut\u00f4t que de cr\u00e9er une philosophie de s\u00e9curit\u00e9 enti\u00e8rement nouvelle \u00e0 partir de z\u00e9ro, l\u2019ing\u00e9nieur s\u2019est largement appuy\u00e9 sur les exigences existantes de la norme UL 508, la norme \u00e9tablie de longue date pour les \u00e9quipements de commande industrielle. La norme UL 508 traitait d\u00e9j\u00e0 de nombreux principes de s\u00e9curit\u00e9 \u00e9lectrique pertinents pour les dispositifs de commande industrielle, notamment les exigences d\u2019espacement, le dimensionnement des conducteurs, la protection contre les surintensit\u00e9s, l\u2019ad\u00e9quation des composants, la mise \u00e0 la terre et les pratiques de construction. L\u2019ing\u00e9nieur a \u00e9galement emprunt\u00e9 des exigences au Code national de l\u2019\u00e9lectricit\u00e9 (NEC) en vigueur \u00e0 l\u2019\u00e9poque.<\/p>\n<p>L&rsquo;ing\u00e9nieur a adapt\u00e9 ces exigences \u00e0 l&rsquo;\u00e9valuation de panneaux de commande industriels complets.<\/p>\n<p>Comme ces exigences figuraient dans des documents internes informels plut\u00f4t que dans des normes publi\u00e9es, elles ont \u00e9t\u00e9 surnomm\u00e9es dans l\u2019industrie \u00ab norme de tiroir de bureau \u00bb. Ce nom refl\u00e9tait le fait que les crit\u00e8res d\u2019\u00e9valuation \u00e9taient litt\u00e9ralement rang\u00e9s dans les tiroirs des ing\u00e9nieurs et n\u2019\u00e9taient pas des documents distribu\u00e9s au public.<\/p>\n<p>Malgr\u00e9 son caract\u00e8re non officiel, la norme du tiroir s\u2019est av\u00e9r\u00e9e extr\u00eamement pr\u00e9cieuse. Elle a fourni aux repr\u00e9sentants sur le terrain et aux ing\u00e9nieurs d\u2019UL une base coh\u00e9rente pour \u00e9valuer les panneaux de commande industriels, tout en permettant aux fabricants d\u2019obtenir des homologations pour des assemblages sur mesure.<\/p>\n<p>Pendant de nombreuses ann\u00e9es, ce processus d\u2019\u00e9valuation interne a constitu\u00e9 la principale m\u00e9thode d\u2019\u00e9valuation des panneaux de commande industriels aux \u00c9tats-Unis.<\/p>\n<\/div>            <\/div>\n        \n                    <div\n                class=\"h-auto mt-6 md:mt-4 lg:mt-8 xl:mt-9 overflow-hidden shadow-content-image w-full md:w-2\/3\"\n            >\n                \n\n    \n        \n            \n                \n                    <picture\n                        class=\"\"\n                                            >\n                                                                                                        <source\n                                media=\"(max-width: 150px)\"\n                                width=\"150\"\n                                height=\"150\"\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2026\/06\/History-of-UL-508A-150x150.png.webp\"\n                                type=\"image\/webp\"\n                            \/>\n                                                                                <source\n                                media=\"(max-width: 300px)\"\n                                width=\"300\"\n                                height=\"225\"\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2026\/06\/History-of-UL-508A-300x225.png.webp\"\n                                type=\"image\/webp\"\n                            \/>\n                                                                                <source\n                                media=\"(max-width: 768px)\"\n                                width=\"768\"\n                                height=\"576\"\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2026\/06\/History-of-UL-508A-768x576.png.webp\"\n                                type=\"image\/webp\"\n                            \/>\n                                                                                <source\n                                media=\"(max-width: 1024px)\"\n                                width=\"1024\"\n                                height=\"768\"\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2026\/06\/History-of-UL-508A-1024x768.png.webp\"\n                                type=\"image\/webp\"\n                            \/>\n                                                                            <img\n                            class=\"a-image transparent border-image h-auto  w-full\"\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2026\/06\/History-of-UL-508A.png.webp\"\n                                                        width=\"1448\"\n                            height=\"1086\"\n                                                                                    title=\"History of UL 508A\"\n                                                        type=\"image\/webp\"\n                            loading=\"eager\" fetchpriority=\"high\" decoding=\"async\"                        \/>\n                    <\/picture>\n\n                \n\n                    \n    \n\n            <\/div>\n        \n        \n\n    <\/div>\n        <\/section>\n\n    \n\n\n\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-base\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n                    <div class=\"mb-6 relative w-full md:mb-4 lg:mb-8 xl:mb-9\">\n                \n        <div                class=\"m-headings\"\n            >\n    \n    \n<h2 class=\"a-heading text-primary font-heading text-2xl lg:text-3xl xl:text-4xl font-normal mt-2 first:mt-0\">\n                    Influence de la norme UL 508    <\/h2>\n        <\/div>\n                <\/div>\n        \n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>La norme UL 508 a constitu\u00e9 le pilier technique du programme \u00e9mergent sur les panneaux de commande. La norme couvrait d\u00e9j\u00e0 les \u00e9quipements de commande industriels tels que :<\/p>\n<ul>\n<li>Les contr\u00f4leurs de moteur<\/li>\n<li>Les relais industriels<\/li>\n<li>Contacteurs<\/li>\n<li>Boutons-poussoirs<\/li>\n<li>Commutateurs s\u00e9lecteurs<\/li>\n<li>Interrupteurs industriels<\/li>\n<li>Dispositifs pour circuits de commande<\/li>\n<li>Dispositifs de signalisation<\/li>\n<li>Relais de surcharge<\/li>\n<\/ul>\n<p>En appliquant les principes de construction de la norme UL 508 \u00e0 des ensembles de panneaux complets, les ing\u00e9nieurs d&rsquo;UL ont pu cr\u00e9er un cadre pratique pour \u00e9valuer les panneaux de commande industriels sans avoir \u00e0 \u00e9laborer imm\u00e9diatement une norme enti\u00e8rement distincte.<\/p>\n<p>Cette approche s&rsquo;est av\u00e9r\u00e9e tr\u00e8s fructueuse, car elle a permis de fonder les \u00e9valuations des panneaux sur des principes de s\u00e9curit\u00e9 \u00e9lectrique \u00e9prouv\u00e9s tout en tenant compte de la nature sur mesure de la construction des panneaux de commande industriels.<\/p>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n","protected":false},"excerpt":{"rendered":"<p>Les premi\u00e8res exigences utilis\u00e9es pour \u00e9valuer les panneaux de commande industriels \u00e9taient \u00e9tonnamment informelles selon les normes actuelles. D\u2019apr\u00e8s les t\u00e9moignages historiques de personnes famili\u00e8res avec le d\u00e9veloppement du programme, les premi\u00e8res exigences consistaient en grande partie en des notes manuscrites r\u00e9dig\u00e9es par un ing\u00e9nieur \u00e9lectricien d\u2019UL.<\/p>\n","protected":false},"author":2,"featured_media":52551,"parent":52756,"menu_order":1,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tipologia_approfondimento":[163],"class_list":["post-52766","approfondimento","type-approfondimento","status-publish","has-post-thumbnail","hentry","tipologia_approfondimento-conformite-ul-et-csa"],"acf":{"sottotitolo":"","allegati":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>L&#039;\u00e8re des \u00ab normes de tiroir \u00bb - Gt-Engineering<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L&#039;\u00e8re des \u00ab normes de tiroir \u00bb - Gt-Engineering\" \/>\n<meta property=\"og:description\" content=\"Les premi\u00e8res exigences utilis\u00e9es pour \u00e9valuer les panneaux de commande industriels \u00e9taient \u00e9tonnamment informelles selon les normes actuelles. D\u2019apr\u00e8s les t\u00e9moignages historiques de personnes famili\u00e8res avec le d\u00e9veloppement du programme, les premi\u00e8res exigences consistaient en grande partie en des notes manuscrites r\u00e9dig\u00e9es par un ing\u00e9nieur \u00e9lectricien d\u2019UL.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/\" \/>\n<meta property=\"og:site_name\" content=\"Gt-Engineering\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-15T06:53:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2026\/06\/History-of-UL-508A-1024x768.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"768\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/approfondissement\\\/conformite-ul-et-csa\\\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\\\/l-ere-des-normes-de-tiroir\\\/\",\"url\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/approfondissement\\\/conformite-ul-et-csa\\\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\\\/l-ere-des-normes-de-tiroir\\\/\",\"name\":\"L'\u00e8re des \u00ab normes de tiroir \u00bb - Gt-Engineering\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/approfondissement\\\/conformite-ul-et-csa\\\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\\\/l-ere-des-normes-de-tiroir\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/approfondissement\\\/conformite-ul-et-csa\\\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\\\/l-ere-des-normes-de-tiroir\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.gt-engineering.it\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/History-of-UL-508A.png\",\"datePublished\":\"2026-06-09T10:49:42+00:00\",\"dateModified\":\"2026-06-15T06:53:22+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/approfondissement\\\/conformite-ul-et-csa\\\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\\\/l-ere-des-normes-de-tiroir\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/approfondissement\\\/conformite-ul-et-csa\\\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\\\/l-ere-des-normes-de-tiroir\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/approfondissement\\\/conformite-ul-et-csa\\\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\\\/l-ere-des-normes-de-tiroir\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.gt-engineering.it\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/History-of-UL-508A.png\",\"contentUrl\":\"https:\\\/\\\/www.gt-engineering.it\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/History-of-UL-508A.png\",\"width\":1448,\"height\":1086},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/approfondissement\\\/conformite-ul-et-csa\\\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\\\/l-ere-des-normes-de-tiroir\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u00c0 \u00e9tudier\",\"item\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/approfondimenti\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Conformit\u00e9 aux normes UL et CSA\",\"item\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/approfondissement\\\/conformite-ul-et-csa\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Histoire et \u00e9volution de la norme UL 508A : la norme relative aux armoires de commande industrielles\",\"item\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/approfondissement\\\/conformite-ul-et-csa\\\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\\\/\"},{\"@type\":\"ListItem\",\"position\":5,\"name\":\"L&#8217;\u00e8re des \u00ab normes de tiroir \u00bb\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/#website\",\"url\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/\",\"name\":\"Gt-Engineering\",\"description\":\"bizonweb\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.gt-engineering.it\\\/fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"L'\u00e8re des \u00ab normes de tiroir \u00bb - Gt-Engineering","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/","og_locale":"fr_FR","og_type":"article","og_title":"L'\u00e8re des \u00ab normes de tiroir \u00bb - Gt-Engineering","og_description":"Les premi\u00e8res exigences utilis\u00e9es pour \u00e9valuer les panneaux de commande industriels \u00e9taient \u00e9tonnamment informelles selon les normes actuelles. D\u2019apr\u00e8s les t\u00e9moignages historiques de personnes famili\u00e8res avec le d\u00e9veloppement du programme, les premi\u00e8res exigences consistaient en grande partie en des notes manuscrites r\u00e9dig\u00e9es par un ing\u00e9nieur \u00e9lectricien d\u2019UL.","og_url":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/","og_site_name":"Gt-Engineering","article_modified_time":"2026-06-15T06:53:22+00:00","og_image":[{"width":1024,"height":768,"url":"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2026\/06\/History-of-UL-508A-1024x768.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/","url":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/","name":"L'\u00e8re des \u00ab normes de tiroir \u00bb - Gt-Engineering","isPartOf":{"@id":"https:\/\/www.gt-engineering.it\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/#primaryimage"},"image":{"@id":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/#primaryimage"},"thumbnailUrl":"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2026\/06\/History-of-UL-508A.png","datePublished":"2026-06-09T10:49:42+00:00","dateModified":"2026-06-15T06:53:22+00:00","breadcrumb":{"@id":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/#primaryimage","url":"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2026\/06\/History-of-UL-508A.png","contentUrl":"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2026\/06\/History-of-UL-508A.png","width":1448,"height":1086},{"@type":"BreadcrumbList","@id":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/l-ere-des-normes-de-tiroir\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/www.gt-engineering.it\/fr\/"},{"@type":"ListItem","position":2,"name":"\u00c0 \u00e9tudier","item":"https:\/\/www.gt-engineering.it\/fr\/approfondimenti\/"},{"@type":"ListItem","position":3,"name":"Conformit\u00e9 aux normes UL et CSA","item":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/"},{"@type":"ListItem","position":4,"name":"Histoire et \u00e9volution de la norme UL 508A : la norme relative aux armoires de commande industrielles","item":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/conformite-ul-et-csa\/histoire-et-evolution-de-la-norme-ul-508a-la-norme-relative-aux-armoires-de-commande-industrielles\/"},{"@type":"ListItem","position":5,"name":"L&#8217;\u00e8re des \u00ab normes de tiroir \u00bb"}]},{"@type":"WebSite","@id":"https:\/\/www.gt-engineering.it\/fr\/#website","url":"https:\/\/www.gt-engineering.it\/fr\/","name":"Gt-Engineering","description":"bizonweb","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.gt-engineering.it\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"}]}},"_links":{"self":[{"href":"https:\/\/www.gt-engineering.it\/fr\/wp-json\/wp\/v2\/approfondimento\/52766","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gt-engineering.it\/fr\/wp-json\/wp\/v2\/approfondimento"}],"about":[{"href":"https:\/\/www.gt-engineering.it\/fr\/wp-json\/wp\/v2\/types\/approfondimento"}],"author":[{"embeddable":true,"href":"https:\/\/www.gt-engineering.it\/fr\/wp-json\/wp\/v2\/users\/2"}],"version-history":[{"count":1,"href":"https:\/\/www.gt-engineering.it\/fr\/wp-json\/wp\/v2\/approfondimento\/52766\/revisions"}],"predecessor-version":[{"id":52768,"href":"https:\/\/www.gt-engineering.it\/fr\/wp-json\/wp\/v2\/approfondimento\/52766\/revisions\/52768"}],"up":[{"embeddable":true,"href":"https:\/\/www.gt-engineering.it\/fr\/wp-json\/wp\/v2\/approfondimento\/52756"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gt-engineering.it\/fr\/wp-json\/wp\/v2\/media\/52551"}],"wp:attachment":[{"href":"https:\/\/www.gt-engineering.it\/fr\/wp-json\/wp\/v2\/media?parent=52766"}],"wp:term":[{"taxonomy":"tipologia_approfondimento","embeddable":true,"href":"https:\/\/www.gt-engineering.it\/fr\/wp-json\/wp\/v2\/tipologia_approfondimento?post=52766"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}